On this day in 1948, leftists launched an uprising on Jeju Island in South Korea.

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On this day in 1929, Irish mercenary Patrick Murphy unintentionally dropped two bombs over the border town of Naco, Arizona.

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On this day in 1940, environmental and political activist Wangari Maathai was born in Kenya.

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On this day in 1878, heavyweight boxing champion Jack Johnson was born.

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On this day in 1791, the French National Assembly accepted a proposal by the French Academy of Sciences to define the meter. 

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On this day in 1947, Malagasy nationalists launched an uprising against the French colonial government in Madagascar.

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On this day in 1979, a failure in a reactor at the Three Mile Island Nuclear Generating Station led to a partial meltdown.

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On this day in 1964, a 9.2 magnitude earthquake hit Alaska.

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On this day in 1888, Swedish nurse Elsa Brändström was born in St. Petersburg.

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On this day in 1655, Christiaan Huygens first observed Saturn's largest moon, Titan.

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